Reviews — Geology of the Cape of Good Hope. 



571 



Among other points of interest we may notice the description of 

 the richly fossiliferous Cretaceous rocks (Umtamvuna Beds of 

 Mr. Dunn's map, Izinhluzabalungu deposits of Griesbach) ; and 

 the field evidence obtained as to the correlation of the Enon 

 Conglomerate and Uitenhage Series. 



The Eeport for 1902 contains an excellent summary of the year's 

 work by Mr. Eogers, which consisted of an examination of the 

 Matatiele Division by Mr. Schwarz, and parts of the Divisions of 

 Beaufort West, Prince Albert, and Sutherland, by Messrs. Eogers 

 and Schwarz. The account of the volcanic rocks of Matatiele by 

 Mr. Schwarz contains much interesting matter, not the least 

 important being the discovery of a whole series of volcanic necks in 

 such positions as indicate that large parts of the Drakensberg and 

 Maluti Eanges were formerly chains of volcanoes, and that they owe 

 their elevation to these causes. 



The higher parts of East Griqualand, Mr. Schwarz considers, offer 

 a good field for the search for workable seams of coal, which would 

 probably lie on about the same horizon as those of Indwe. 



In the Western Province a nearly complete skeleton of 

 Pareiasaurus serridens, weighing 700 lbs., was obtained and sent to 

 Cape Town, where it is to be set up in the Cape Museum. Many 

 other reptilian remains of great interest were also obtained, and the 

 belief is expressed that the Karroo System will be satisfactorily 

 subdivided by their means when they are sufficiently collected and 

 described. 



Not the least welcome feature of the Eeport for 1902 will be the 

 following table of the classification of the Sedimentary Eocks of the 

 Colony, of which we hope Mr. Eogers' anticipation that it will not 

 require any considerable alteration in the near future will be 

 realized : — 



r Duue sands, aud limestone derived from them. 

 j Alluvial muds, sands, and gravels near the present levels 

 I of the rivers. Laterite. 



i Estuarine deposits containing f oraminif era and Cryptodoii 

 I globosus. 



\. Quartzitic rocks and ironstone gravels, representing older 

 river deposits and laterites. 

 Pondoland Cretaceous Series. 

 Uitenhage Series. 

 f rVolcanic Beds. 



Stoemberg I Cave Sandstone. 

 Series. "1 Red Beds. 



l^Molteno Beds. 



In the Transkei. 

 j-Zone of Specialized | j^^^^^^. ^^^^_ 

 Beaufort J iheriodonts. ) 

 Series. 1 DicijHoclon Beds. \ j^^^^^ ,,j, ^eds. 

 \Pareiasaurus heaa. ) •' 

 r Shales and thin ^ 

 EccA J sandstones. 

 Series. | Laingsburg Beds. 

 1_ Shales. 

 Upper Shales. 

 Conglomerate. 

 Lower Shales. 



SUPERFICIAL 

 DEPOSITS. 



KARROO SYSTEM. ( 



•Umsikaba Beds. 



DWYKA 



Series. 



